Exception to Number 1

Rule number one of Orwell's solution to fix the problem with the English language states that one must "never use a metaphor, simile, or other figure of speech which you are used to seeing in print" (Orwell). I disagree with this rule because there are certain figures of speech which can be useful in one's piece of writing. If one knows the meaning of a certain figure of speech and if it makes sense to be used within the piece of writing, then why not use it? I believe that, in some cases, figures of speech such as metaphors and similes can make a piece of writing seem more vivid and descriptive. If these are used in other print documents, then it means that these figures of speech are useful and popular, not that they're bad to be used within one's own writing.